Abrasive apparatus.



O. C. WYSONG. V ABRASIVE APPARATUS.

APPLICATION FILED AUG. 8, 1907.

Patented Oct. 6, 1908.

2 SHBETSSHEET 1.

Gem,

0. C. WYSONG.

ABRASIVE APPARATUS. APPLICATION run) 16.3, 1907.

Patented Oct. 6, 1908.

2 SHEETS-$111131 2] 7r: in! r ll w; in woes UNITED STATES PATENT ()FFICE.

OLMEDO CORTEZ WYSONG, OF GREENSBORO, NORTH CAROLINA.

ABRASIVE APPARATUS.

Specification of Letters Patent.

Patented Oct. 6, 1908.

Application filed August 8, 1907. Serial No. 387,605.

To all whom it may concern:

r Be it known that I, OLMEDO Comrnz VVY- SONG, a citizen of the United States, residing at Greensboro, "in the county of Guilford and State of North Carolina, have invented certain new and 'useful Improvements in Abrasive Apparatus, of which the following is a specification.

My invention relates to improvements in abrasive apparatus.

One of its objects is to provide an improved arrangement of the parts whereby the work can be conveniently treated and examined.

Another object is to provide an improved arrangement of parts whereb the operative parts are brought close to t e floor and a strong stead mechanism secured.

Another 0 ject is to provide means whereby the abrasive belt can be successfully operated when running with its abrasive face toward the pulleys.

Another object is to provide improved means for supporting and examining curved surface and p ane'surface work.

It further consists incertain details of form, combination, and arrangement, all of which will be more fully set forth in the de scription of the accompanying drawings, in

which Figure 1 1s a side elevation of my improved mechanism in the form which it is employed. for treating long'and heavy work. Fig. 2

represents a side elevation of amodification employed for treating shorter and lighter work. Figs. 3 and 4 represent differentstyles of work capable of being treated with my improved mechanism. Fig. 5 is a section on line no of Fig. 1. Fig. 6 is a similar view showing the work table in position to examine' the work. Fig. 7 a section on line of Fig. 2. Fi 8 is a side elevation of the work table of 1 adapted for plane work. Fig. 9 is a perspective view of the hand opcrated pad for pressing the abrasive belt to the work. Fig. 10 is a. top plan view of the machine Fig. 2 showing amodilied. table for treatin light and short work.

As il ustrated in Fig. l, A represents the driving shaft, which preferably driven by means of av belt from the line shaft shiftablc from a tight to a loose pulley to stop and start shaft A. Shaft- A. carries a pulley A which is preferably provided. with a surface.

A offibrous or textile material formed winding a piece of canvas several times around the faccpf the pulley and firmly securing the same in lace by a suitable cement. The shaft A is journaled in a standard B secured firmly to the floor. I) represents a slotted bracket to which may be attached an adjustable arm I) at the upper end of which is an adjustable arm 5 armed at its free end with a form 01' forming roller b adapted to press upon the rear or smooth face of the a rasive beltand give it approximately the outline of the work to be treated. C represents a standard which may be seclired to the floor at any desired distance 'from the standard B, depending upon'the length of work to be treated. .0 represents a bracket similar to bracket 5, and to which may be attached a second set of parts Z), V, b for the purpose above described. The upper portion of standard O is provided with ways a in which slide an ady'ustable head C, said head being adjustab e relative to the standard by means of a screw shaft 0 and handwlieel c.

D represents a shaft journaled in boxes carried by the head G and provided with a pulley I) having a fibrous face I) similar to that of the pulley A.

E represents the abrasive belt. which adjusted upon the pulleys A D with its abrasive face to the pulleys, the head C be ing adjusted to secure the desired tension on the belt.

. F represents a work supporting table car lied on standards f f and adjustable as to height by means of a shaft f carrying beveled gears f meshin -wilh beveled. gears f which rotate screw ro s to elevate and lower the stems 7' within the staiulards f f, to which they are splincd. The upper ends of the stems f are bent. at. right angles and journalcd in boxes f 7* nlim'lnal to lhe under side of the table F. The box is split at one side, and held normally light upon the slam f by means of a spring r and bolt. 1 A. handle (l projects from the box f beymul the edge of the table, and a. pivoted lever is adapted to be grasped with the handle and. pressed against the handle lo cause its oppo-- site end to counteract the spring {I and loo en the gri of the box f upon stein f so that the tab 0 may be tilted to any (hash-ed posh tion, which it. will retain as soon as lever is released. The table may thus be tilted as indicated in Fig. 6 to lower the work away from the under abrasive side of the bell. in

order that the work may be conveniently examined. Long pieces-of work W such as illustrated in Figs. 3 and 4 are i'eferably supported upon cross bars 72. attac ed to the table F and notched or recessed at h' to support the particular style of work to be treated.

Angle plates z' are provided at the ends of the table, to which as shown in Fig. 8 may be bolted cross rails 11, and where plane work is to be treated, a supplemental table'I is provided, which travels crosswise above the table 11 upon rollers 2' riding upon the rails i; thus the Work 'w resting on table I may be drawn forward from under the belt for examination, and returned for further treatment.

In treating the work a hand pad J is applied to and shifted along the rear or smooth face of the belt to press the abrasive face of the belt against the work at the points desired, the belt traveling normally slightly above the face of the work, except as pressed against the work by ad J. This permits the work to be various y treated at different points as may be required, and permits the desired surface to be secured without danger of cutting through even thin veneers. By running the abrasive belt with its abrasive face to the pulleys and interposing the table between the 11 per and lower sections or reaches of the helt,-I am enabled to avoid havin the pulleys above the table, thus bringing the belt close to the floor where a firm support is secured therefor, vibration avoided, a compact mechanism attained, and the operative parts brought into convenient position for use. The textile face of the pulefys secures a strong traction or propulsion o the belt, and avoids injuryto the abrasive face of the-belt, and to the face of the pulleys. In the modification shown in Figs. 2 and 7 the driving shaft is journaled centrally within a sleeve K forming part of the swinging or-adjustable frame K, which sleeve is journaled in the standard B. An idler pulley D is carried by a head In sliding in ways upon the end of frame K, and ad ustable to ti hten the abrasive belt by means of ascrew k and handwheel In. A se ental bracket L pg'rg'eets downward from aine K and is loc e by means of an e e-bolt l and eccentric pin l to-the standard which is bolted to orstands upon the floor. The frame K is provided with slots lcto which may be secured arms similar to arms b b and also brackets M which maybe employed to su port cross'rails i? on which table I-ma Be mounted, ora table similar totable F may be mounted on; brackets secured.to the frame K by slots is; Frame K is adjustable from a hsrizoatal to nearly vertical position- As'illustrated in Fi 10 a bracket'N, is attached to the frame K and a table N pivotally mounted thereon. The work w is laid upon the table and the table may be shifted I upon its pivot as indicated in full and dotted lines to bring the work beneath the belt or into position to be examined by the operator.

n represents a strip againstwhich the work rests to prevent it from slipping off the table.

The mechanism herein specified is capable of considerable modification without departing from the principle of my invention.

Having described my invention, what I claim is; 4

1. In a mechanism of the character indicated, a driving pulley, an idler pulley, an abrasive belt supported by said pulleys with its abrasive face to the pulleys, a work table interposed between the two reaches of said belt, and means for pressingthe belt against the face of the work.

2. In a mechanism of the character indicated, a pair of pulleys, an abrasive belt supported upon and driven by said pulleys with the abrasive face of the belt toward the pulleys, a movable work table interposed between the two reaches of the belt, said table being movable relative to said belt to shift the work so that it may be acted upon by the belt and examined by the operator.

3. In a mechanism of the character indicated, a pair of pulleys, an abrasive belt supported upon and driven by said pulleys with the abrasive face of the belt toward the pulleys, a work table pivotally supported between the two reaches of said belt, and means for adjusting said table to varying positions relative to said pivotal support,

and locking the table to its adjusted position.

4. In a mechanism of the character indicated, a pair of pulleys, anabrasive belt sup' orted upon and driven by said pulleys wit the abrasive face of the belt toward said pulleys, a work table pivotally supported between the two reaches of said belt,

.mechanism for adjusting said table to vary-' ing positions relative to'said support and locking the table to its adjusted position, and means for pressing the belt against the face of the work.

5. In a mechanism of the character indicated, a air of pulleys, an abrasive belt sup orted upon and driven by said pulleys wit the abrasive face of the belt toward said pulleys, a work table adjustably supported between the two reaches of said belt, and cross rails carried by said table, said cross rails being ada ted to support a de-- tachablesupplementa table.

6. In a mechanism of the character'indicated, a pair of pulleys, an .abrasive belt sup orted upon and driven by said pulleys wit the abrasive face of the belt toward said pulleys, a work table 'pivotally supof'said bert,

port: betvfien the two teaches and rails carried by. 'said table, said rails being ada. ted to support. a supplemental table mova le relative to-said rimary table. 7

7. In a mechanism of the -c was textile material, an abrasive belt supported upon "and driven by said pulleys with the' abrasive face of the belt toward said pulleys, a ,work table supported between the two reaches of said belt, in )osition to support the work so as to be acte ,upon by the under face of the upper reach'of said sand belt.

S. In a mechanism of the" character indicated, a driving pulley havinfl a face of textile material, an idler pulley, and an abrasive belt' traveling over and strained uponsaid respective pulleys with its abra sive face toward said pulleys.

t). In a mechanisn'i of the character indicated, a pair of pulleys, each having a face of textile material, and an abrasive belt" traveling over and strained upon said re spectiveipulleys with its abrasive face toward said pulleys. l

10. In a mechanism of the character indicated, a pair of pulleys, an abrasive belt supported upon and driven by "said pulleys, with Ms abrasive face toward sald pulleys, and a work supporting table located between the two reaches of said belt.

111 testimony whereof I have aflixed my signature in presence of two witnesses,

' OLMEDO CORTEZ \VY SONG. Witnesses:

, J. A. KLEEMEIER,

P. D. KEMER. 

